KYN18A-12 AC witdrawout metal-clad switchgear

Model Description K---------------------------------------metal-clad and metal-enclosed Switchgear Y---------------------------------------withdrawable N---------------------------------------Indoor 18--------------------------------------design No. A---------------------------------------remodel No. 12-------------------------------------- rated voltage (KV) *-------------------------------------- plan No. of main circuit *--------------------------------------environment characteristics subtropical area THXerothermic area HA *--------------------------------------rated current (A) *--------------------------------------rated short circuit drop-out current (KA) Summary KYN18A-12 AC indoor withdrawout metal-clad Switchgear is the central vacuum switch cabinet which mainly applies the ZN12-12 vacuum circuit breaker, but also can be equipped with ZN22B-12 vacuum circuit breaker and 3AF, 3AH vacuum circuit breaker of Siemens. The product complies with the standard of GB3906-91 (3-35KV AC metal-enclose switch cabinet), the standard of DL4047-91 (indoor AC switch cabinet ordering technique) and the standard of IEC298 (AC metal-enclosed Switchgear and control equipments). It is used in the AC 3-10 KV three-phase 50 Hz single bus power system to receive and distribute the power. It is widely used in various kinds of power plants, substation and industrial and mining enterprises. The product can be installed against the wall (not recommended) and non-against the wall installed. Technical parameters ItemUnitValueRated voltageKV12Rated frequencyHz50/60Rated insulation level1 min power frequency withstand voltageKV42 (isolation fracture: 48)Rated lightning impulse withstand voltage75 (isolation fracture: 85)Rated currentA630,1250,1600,2000,2500,3150,4000,5000specified short circuit drop-out currentKA20, 25, 31.5,40,50,63Rated short circuit making currentKA50, 63, 80,100,130,160Rated short-time withstand current (4S)KA20, 25, 31.5,40,50,63Rated withstand current (peak)KA50, 63, 80,100,130,160Protection degreeIP4XExternal dimension (W*D*H)≤1250Amm800*1650*2200≥1600A1000*1650*2200Overhead inletD:1800